D71F46 manually lined butterfly

 D71F46 lined butterfly valves manual describes: D71F46 manual valve lined fluorine plastic lining technology, the use of a combination of a two-piece body, valve seat and valve lining integration, the valve is working, only plastic and plastic-lined seat disc contact with the media, the valve can withstand corrosion lining material media presentation, using a quadrupole structure and with an elastic sealing gasket temperature aging of SI rubber sealing surface in fully achieve zero leakage medium. Casting valve body, high strength, the appearance of smooth, fluid flow components in contact with all of the fluorine plastic (D71F4 is lined PTFE, D71F46 as poly FEP liner, it can at -50 ℃ ~ Long-term use of the range of 180 ℃ to any concentration of corrosive pipe, pipeline work products are widely applied to various types of industrial chemical pipelines in the structural characteristics of D71F46 lined butterfly valves manually: 1 butterfly valve for the entire disc and valve seat in the 360 ??° circumference concentric (neutral), with two-way sealing function, pressure, flow can be adjusted freely. 2, the cam eccentric butterfly effect is a two-dimensional direction eccentric products will generate enough Sealing Sealing pressure, and with the Working pressure rises, the effect is more ideal sealing 3, four spring-loaded seals to ensure the valve, zero leakage outside .a: one shaft and the outer lining butterfly F46; b:. stub end face and elastic O-rings the shoulder of the rigid washer, elastic rubber composition; c: Radial shaft using O-ring and metal sleeve combination; d:. seat insert elastic strip body groove 4, elastically gasket positioning accurate, simple structure (using O-ring security measures to prevent accidental leakage of) D71F46 manual Lined butterfly design specification: according to national standard GB / T12238, American Standard API 609 and MSS SP-67 standard four, D71F4, Drive mode D71F46 of: D71F type of handle drive hoist, you can install the worm gear (D371F) on the basis of manual, pneumatic (D671F4), electric (D971F46) and other major parts D71F46 manually lined butterfly: No. Part name cast ultra-low carbon stainless steel acid resistant stainless steel CPR PL RL 1 body / bonnet WCB CF8 CF8M CF3 CF3M 2 disc 35 CF8 CF8M CF3 CF3M 3 stem 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 00Cr18Ni10 000Cr17Ni14Mo2 4 lining / seat PTFE ( F4), PCTEF (F3), FEP (F46), PFA (soluble F4), PP, PO 5 ring FPM (Viton) FPM (FKM) 6 elastic strip (PAD) Si (silicone rubber) Si (silicon rubber) 7 Adjust the spud 0Cr18Ni9 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 00Cr18Ni10 00Cr17Ni14Mo2 8 fastening bolts 35 1Cr17Ni2 1Cr17Ni2 1Cr18Ni9Ti 1Cr18Ni9Ti 9 nut 45 0Cr18Ni9 0Cr18Ni9 0Cr18Ni9 0Cr18Ni9 10 operating handle ZL101